摘要
目的比较Pentacam、SP 3000和A型超声测量正常人中央角膜厚度的差异性及一致性。方法分别用Pentacam、SP 3000和A型超声测量40例正常人右眼的中央角膜厚度。结果 Pentacam、SP 3000和A超测量的中央角膜厚度分别为(535.8±33.8)μm、(508.6±35.5)μm和(530.7±36.9)μm;A型超声与Pentacam测量的中央角膜厚度无显著性差异(P=0.517),两者的差值为(5.4±7.9)μm,两者95%的一致性区间为(-18.1～7.8)μm;A型超声与SP3000测量的中央角膜厚度有显著性差异(P=0.006),两者的差值为(21.2±7.9)μm,95%一致性区间为(8.6～35.7)μm;SP 3000与Pentacam测量结果有显著性差异(P=0.001),两者的差值为(27.3±7.9)μm,两者95%的一致性区间为(13.7～40.8)μm。结论 Pentacam与A型超声测量正常人中央角膜厚度的差值较小,一致性较好,在测量正常人中央角膜厚度时可以相互替代使用;Pentacam与SP 3000、A型超声与SP 3000测量中央角膜厚度的一致性较差,在临床应用中要引起注意。
Objective It is to compare the difference and agreement in central corneal thickness measurements by Pentacam, SP 3000 and A - scan. Methods Totally 40 eyes of 40 volunteers were measured with Pentacam, SP 3000 and A - scan in central corneal thickness. Results The measurements of central corneal thickness were （535.8 ±33.8）μm, （508.6 ±35.5） μm and （530.7 ±36.9） μm respectively with Pentacam, SP 3000 and A - sca. The difference between Pentacam and A - scan was （5.4 ±7.9 ） μm, no statistically significant difference could be found （ P = 0. 517 ） , the 95% limit of agreement was （ -18.1 ±7.8）μm. There was statistically significant difference between SP 3000 and A -scan measurements （mean difference was （21.2 ± 7.9 ） μm, P = 0. 006） , the 95 % limit of agreement was （ 8.6 - 35.7 ） μm. There was statistically significant difference between SP 3000 and A - scan＇measurements （ mean difference was （ 27.3 ± 7.9 ） μ, P = 0. 001 ） , the 95% limit of agreement was （ 13.7 ± 40.8） μm. Conclusion Little difference and good agreement can be found between Pentacam and A - scan in central corneal thickness measurements. They can be used interchangeably in central corneal thickness of normal people. The.agreement between Pentacam and SP 3000, A - scan and SP 3000 are bad. Attention should be paid to the differences between each two in the measurements of central corneal thickness.
出处
《现代中西医结合杂志》
CAS
2012年第18期1943-1945,共3页
Modern Journal of Integrated Traditional Chinese and Western Medicine
